Can I promote my cannabis growing product or tool here?
No. “Keine unerwünschten Links und Werbung” states that unwanted advertising and affiliate links are not tolerated, and the policy brief confirms promotion is banned.
Subreddit guides
r/Canbau rules, stats, and what to post
A source-backed Rankhog guide to r/Canbau: public rules, community context, posting fit, and startup-promotion risk before you publish.
By Anthony Riera, founder and operator of Rankhog.
Subreddit guides combine public Reddit source URLs, captured rules, visible verification dates, and Rankhog's account-safety workflow.
Current public stats
- Members
- 25,507
- Verified
- September 30, 2026
- Category
- Cannabis cultivation communities
Rules can change, so Rankhog keeps verification dates and the original public Reddit sources visible.
Rule summary
- Respektiere andere Nutzer: Sei höflich und respektvoll. Beleidigende, bedrohliche oder diskriminierende Kommentare sind nicht erlaubt.
- Keine Low-Effort / Troll-Posts: Alle geleisteten Beiträge müssen eine gewisse Qualität und Informationen beinhalten (min. 100 Zeichen). Troll-Posts werden kommentarlos entfernt. Bei Hilfegesuchen ist der [Steckbrief](https://www.reddit.com/r/Canbau/wiki/index/steckbrief/) auszufüllen, den findet ihr nach jedem Post in den Kommentaren.
- Keine politischen Beiträge abseits des CanG's und Grow relevanten Themen: Dies ist ein Growroom, kein Raum für politische Themen.
- Keine unerwünschten Links und Werbung: Links zu unseriösen Seiten oder Plattformen werden gelöscht, unerwünschte Werbung und Affiliate-Links sind nicht geduldet.
- Bleib beim Thema: Alle Themen, die nichts mit dem Anbau von Cannabis zu tun haben, werden entfernt.
- Vermeide Doppelbeiträge: Überprüfe, ob dein Thema bereits vorhanden ist. Nutze hierfür auch gerne die Suchfunktion oder schau in die gepinnten Threads.
- 18+: Auch wenn das Sub nicht auf "NSFW" steht, richten sich die Beiträge an Volljährige.
Works well
- A photo post of your plant or harvest with a short German writeup of your setup, the strain, and what you did differently this grow.
- A lessons learned post after finishing a grow, written in enough detail that it clearly passes the 100 character quality bar.
- A method comparison post, for example your experience with one growing approach versus another, with honest results.
- A help request for a sick or struggling plant, with the Steckbrief form filled out completely so people can actually diagnose the problem.
- An answer in the comments of someone else's help post, sharing what worked for you when you faced the same issue.
Avoid
- Dropping a link to your product or landing page, because “Keine unerwünschten Links und Werbung” says unwanted advertising and affiliate links are not tolerated.
- Writing a two-line post, because “Keine Low-Effort / Troll-Posts” requires at least 100 characters and low effort posts are removed without comment.
- Asking for help with a plant problem without filling out the Steckbrief form that gets linked in the comments after every post.
- Posting about legalization, politics, or anything outside the CanG and grow topics, because “Keine politischen Beiträge abseits des CanG's und Grow relevanten Themen” makes clear this is a growroom, not a political space.
- Posting about anything unrelated to growing cannabis, since “Bleib beim Thema” removes all off-topic posts.
- Reposting a topic that already exists, because “Vermeide Doppelbeiträge” asks you to check the search function and pinned threads first.
What r/Canbau Is For
This is the German language subreddit for growing cannabis. The description says it is all about cultivation, and people come here to post pictures of their plants and their harvest, to discuss different growing methods, and to get help when something goes wrong in the process. It is also a place to share your own knowledge and help others solve their problems. The community describes itself as a growroom, which tells you the focus is practical growing, not debate or business talk. The “18+” rule makes clear the posts are aimed at adults, even though the sub is not marked NSFW.
Rules That Matter Before Posting
The rule that decides most marketing outcomes here is “Keine unerwünschten Links und Werbung”, which says unwanted advertising and affiliate links are not tolerated, and links to untrustworthy sites get deleted. “Keine Low-Effort / Troll-Posts” matters too, because every post must carry real quality and information, with a minimum of 100 characters, and troll posts are removed without comment. “Bleib beim Thema” keeps everything on growing cannabis, and “Keine politischen Beiträge abseits des CanG's und Grow relevanten Themen” bans politics except for CanG and grow related topics. “Vermeide Doppelbeiträge” asks you to check the search function and pinned threads before posting. “Respektiere andere Nutzer” sets the tone, and “18+” reminds you the content is aimed at adults even though the sub is not marked NSFW.
What To Post
A good post here is written in German, adds real information, and clears the 100 character minimum easily. Share your own growing experience, post pictures of your plants or harvest with context about your setup, or write up a method you tried and what you learned from it. If you run a tool or service for growers, the honest path is to participate as a knowledgeable grower first, answer questions, and never push your product, because promotion is banned outright. When you ask for help with a plant problem, fill out the Steckbrief form that gets linked in the comments after every post, and search the subreddit first so you are not posting a duplicate topic.
What To Avoid
Advertising and affiliate links are the fastest way to get removed here, since “Keine unerwünschten Links und Werbung” does not tolerate unwanted promotion. Low effort posts under 100 characters are deleted without comment under “Keine Low-Effort / Troll-Posts”. Help requests without the required Steckbrief form filled out will not get a fair hearing. Political posts outside of CanG and grow topics are removed under “Keine politischen Beiträge abseits des CanG's und Grow relevanten Themen”, and anything unrelated to cultivation is removed under “Bleib beim Thema”. Duplicate topics are removed under “Vermeide Doppelbeiträge”, and rude, threatening, or discriminatory comments are banned under “Respektiere andere Nutzer”.
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Common questions about r/Canbau
Can I share any link at all?
Only if it is genuinely useful, points to a trustworthy source, and is not advertising or an affiliate link. The rule is conditional, so a plain helpful link can survive while a promotional one will not.
What do I need to include when asking for help with my plants?
Fill out the Steckbrief form that appears in the comments after every post, and write at least 100 characters so your request is not removed as low effort.
Can I post pictures of my grow?
Yes, the public description invites you to share pictures of your plants and harvest and to discuss different growing methods.
Can I discuss cannabis law or legalization?
Only if it stays within CanG and grow-related topics. “Keine politischen Beiträge abseits des CanG's und Grow relevanten Themen” removes everything else.
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